Year % of GNI 1976 0.312312877633939 1977 1.65008940834563 1978 1.68361316376381 1979 1.97985783703152 1980 2.87609171739212 1981 0.790260677183831 1982 0.560279120730685 1983 0.662610826245755 1984 0.432406559826511 1985 0.228344648528548 1986 0.0320079961503955 1987 0.195307539547046 1988 1.4370408944491 1989 2.24259833171959 1990 1.68148501952089 1991 0.81546255371797 1992 0.69621066395489 1993 0.250736720434385 1994 1.31101196093214 1995 1.58785842630707 1996 1.13544625017058 1997 1.01396356861405 1998 0.139020649399788 1999 0.158807468483105 2000 0.210054371057128 2001 0.0861095891151266 2002 0.224351743221767 2003 0.170793816739142 2004 0.405193677703121 2005 0.682492357856505 2006 2.82135213926443 2007 3.45659421526308 2008 2.57408825299499 2009 1.27237752171759 2010 2.52683190575289 2011 3.93165013099695 2012 2.52247468702597 2013 2.03837780394057 2014 1.74276640269324 2015 0.122203757812141 2016 0.562142564600919 2017 1.84097817687095 2018 0.936684393991302 2019 0.446166772108712 2020 0.337293423922369 2021 4.65354673428505